This released added a lot of exciting new features. To name a few, Yii now has: RESTful URL Support, Query Caching, Parameter Binding for Class-based Actions, Seamless Client-side Validation, Passing Parameters to Relational Named Scopes, Using 'through' with HAS_MANY and HAS_ONE, Using Transactions in DB Migration, and Registering and Using Custom Script Packages. You may find more details about these features in the following pages: